Granted Patent
Utility
US 6,793,393 · App. 10/323,714
Copper-based sintered alloy bearing for motor fuel pump
Inventors:
Kanezaki Noboru, Maruyama Tsuneo
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Dec 19, 2002
Inventors
Kanezaki Noboru
Maruyama Tsuneo
Assignee (at issue)
MITSUBISHI MATERIALS CORPORATION
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.